Portable computer



FIG. 1 is a top front perspective view of a portable computer showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top front perspective view thereof when the upper screen board is closed onto the lower keyboard body.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a portable computer, as shown and described. 